package com.gulimall.cart.controller;

import com.gulimall.cart.service.CartService;
import com.gulimall.cart.vo.Cart;
import com.gulimall.cart.vo.CartItem;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.List;
import java.util.concurrent.ExecutionException;

/**
 * @author mayifan
 * @version 1.0
 * @date 2025-01-09 12:10
 */
@Controller
public class CartController {

    @Autowired
    CartService cartService;
/**
 * 浏览器有一个cookie；user-key:标识用户身份，一个月后过期
 * 如果第一次使用jd购物车功能，都会给一个临时的用户身份
 * 浏览器保存，每次访问都会带上有这个cookies
 *
 * 登录  session有
 * 没登录，按照cookie里面带来的user-key来做
 * 第一次，如果没有临时用户，帮忙创建一个临时用户
 */





    @PostMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId,
                            @RequestParam("numInput") Integer numInput,
                            RedirectAttributes redirectAttributes
                            ) throws ExecutionException, InterruptedException {
        cartService.addToCart(skuId,numInput);
        redirectAttributes.addAttribute("skuId",skuId);
        return "redirect:http://cart.gulimall.com/addToCartSuccess.html";
    }

    @GetMapping("/addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId, Model model){
        CartItem cartItem = cartService.getCartItem(skuId);
        model.addAttribute("item",cartItem);
        return "success";
    }
    @GetMapping("/currentUserCartItems")
    @ResponseBody
    public List<CartItem> getCurrentUserCartItems(){
        return cartService.getUserCartItems();
    }

    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId") Long skuId, @RequestParam("check") Integer check){
        cartService.checkItem(skuId,check);
        return "redirect:http://cart.gulimall.com/cart.html";
    }

    @GetMapping("/cart.html")
    public String cartListPage(Model model) throws ExecutionException, InterruptedException {

        // 快速得到用户信息，id,user-key
        //        UserInfoTo userInfoTo = CartInterceptor.threadLocal.get();
        Cart cart = cartService.getCart();
        model.addAttribute("cart", cart);
        return "cartList";
    }

    @GetMapping("/changeItemCount")
    public String changeItemCount(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num) {
        cartService.changeItemCount(skuId, num);
        return "redirect:http://cart.gulimall.com/cart.html";
    }
    @GetMapping("/deleteItem")
    public String deleteItem(@RequestParam("skuId") Long skuId){
        cartService.deleteItem(skuId);
        return "redirect:http://cart.gulimall.com/cart.html";
    }



}
